Buckle



FIG. 1 is a perspective view of a buckle showing the new design;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof, the opposite side being the same as this side;

FIG. 4 is a bottom view thereof;

FIG. 5 is an end view thereof; and,

FIG. 6 is an end view opposite that of FIG. 5. 

The ornamental design for a buckle, as shown and described herein. 